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Prevent panic on merge to PR (#10403) (#10408)

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If you attempt to merge to a branch which on a PR there will be a nil pointer error in the pull request checker.

This panic is uncaught and will bring down the gitea server.

This PR adds protection to prevent this.

Co-authored-by: zeripath <art27@cantab.net>
This commit is contained in:
guillep2k 2020-02-21 19:53:32 -03:00 committed by GitHub
parent 919f3f11e2
commit 7284327a00
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 19 additions and 0 deletions
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11
integrations/git_test.go
View file

@ -351,6 +351,17 @@ func doBranchProtectPRMerge(baseCtx *APITestContext, dstPath string) func(t *tes
pr, err = doAPICreatePullRequest(ctx, baseCtx.Username, baseCtx.Reponame, "protected", "unprotected")(t)
assert.NoError(t, err)
})
t.Run("GenerateCommit", func(t *testing.T) {
_, err := generateCommitWithNewData(littleSize, dstPath, "user2@example.com", "User Two", "branch-data-file-")
assert.NoError(t, err)
})
t.Run("PushToUnprotectedBranch", doGitPushTestRepository(dstPath, "origin", "protected:unprotected-2"))
var pr2 api.PullRequest
t.Run("CreatePullRequest", func(t *testing.T) {
pr2, err = doAPICreatePullRequest(ctx, baseCtx.Username, baseCtx.Reponame, "unprotected", "unprotected-2")(t)
assert.NoError(t, err)
})
t.Run("MergePR2", doAPIMergePullRequest(ctx, baseCtx.Username, baseCtx.Reponame, pr2.Index))
t.Run("MergePR", doAPIMergePullRequest(ctx, baseCtx.Username, baseCtx.Reponame, pr.Index))
t.Run("PullProtected", doGitPull(dstPath, "origin", "protected"))
t.Run("ProtectProtectedBranchWhitelist", doProtectBranch(ctx, "protected", baseCtx.Username))

8
services/pull/pull.go
View file

@ -231,6 +231,10 @@ func PushToBaseRepo(pr *models.PullRequest) (err error) {
}
}()
if err := pr.LoadHeadRepo(); err != nil {
log.Error("Unable to load head repository for PR[%d] Error: %v", pr.ID, err)
return err
}
headRepoPath := pr.HeadRepo.RepoPath()
if err := git.Clone(headRepoPath, tmpBasePath, git.CloneRepoOptions{
@ -247,6 +251,10 @@ func PushToBaseRepo(pr *models.PullRequest) (err error) {
return fmt.Errorf("OpenRepository: %v", err)
}
if err := pr.LoadBaseRepo(); err != nil {
log.Error("Unable to load base repository for PR[%d] Error: %v", pr.ID, err)
return err
}
if err := gitRepo.AddRemote("base", pr.BaseRepo.RepoPath(), false); err != nil {
return fmt.Errorf("tmpGitRepo.AddRemote: %v", err)
}